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(836178) - Describes a problem that may occur when you try to start an Office 2003 program and you receive the Invalid product key error message. The workaround includes steps to correctly enter the product key and remove and reinstall Office.

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Microsoft Knowledge Base Article

This article contents is Microsoft Copyrighted material.
©2005-©2007 Microsoft Corporation. All rights reserved. Terms of Use | Trademarks

Article ID: 836178 - Last Review: May 31, 2011 - Revision: 17.0

Invalid product key errors in Microsoft Office

On This Page

Are you receiving an invalid product key error in Microsoft Office 2010?

If you see this error message after entering your product key, start the Online Solution Wizard.

This is not a valid Office Product key. See above examples to learn more.



Online Solution Wizard

A step-by-step solution is available to resolve this problem.



Are you receiving an invalid product key error in an earlier version of Microsoft Office?

If you are looking for information on validation errors in an earlier version of Microsoft Office, click to view the following article in the Microsoft Knowledge Base:

2549291 Invalid product key errors in Microsoft Office 2007 or 2003 (http://kbalertz.com/Feedback.aspx?kbNumber=2549291)


REFERENCES

Do you have problems finding your Office 2010 product key?
Learn more about how to find your Office 2010 product key. (http://support.microsoft.com/common/survey.aspx?scid=sw;en;1844&showpage=1)

Did you lose your Office product key? Are you looking for information about how to replace it?
Learn more about how to replace a lost or damaged Microsoft Office 2010 product key. (http://support.microsoft.com/common/survey.aspx?scid=sw;en;1844&showpage=1)

Do you have questions about the Office 2010 product key card?
Read frequently asked questions about product key cards. (http://office.microsoft.com/en-us/buy/office-product-key-card-frequently-asked-questions-HA101847520.aspx)

Here are other resources you can explore if this article cannot resolve your problem:

APPLIES TO
  • Microsoft Office Home and Student 2010
  • Microsoft Excel 2010
  • Microsoft Excel Home and Student 2010
  • Microsoft Office Professional Academic 2010
  • Microsoft Office Home and Business 2010
  • Microsoft Internet Information Services Media Services 2.0
  • Microsoft Office Professional 2010
  • Microsoft Office Professional Plus 2010
  • Microsoft Office Standard 2010
  • Microsoft OneNote 2010
  • Microsoft OneNote Home and Student 2010
  • Microsoft Outlook 2010
  • Microsoft Outlook 2010 with Business Contact Manager
  • Microsoft PowerPoint 2010
  • Microsoft PowerPoint Home and Student 2010
  • Microsoft Publisher 2010
  • Microsoft Word 2010
Keywords: 
kbnosurvey kbexpertisebeginner kbtshoot kbceip kbsetup kberrmsg kbprb kbcip KB836178
       

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ltrunk - ltrunk NOSPAM-AT-NOSPAM adelphia.net Reported as Irrelevant  
Written: 8/7/2005 8:49 PM
"invalid product key" entered when trying to download MS Office 2003; solution provided says to delete previously entered program but NO previous download exists. How do I solve the problem?